El 3/9/19 a les 18:15, Laine Stump ha escrit:
> On 9/2/19 10:31 AM, Francesc Guasch wrote:
>> Hi. First of all thank you for the work you are doing with libvirt.
>> I am not sure this is the right place to ask, I'd appreciate
>> if you can give me any hint or directions.
>>
>> I have several similar KVM Linux boxes and one of them has a really
>> strange behavior with the KVM NAT: It just suddenly stops from
>> working.

>> Any hints ? Thank you very much
>
> 1) On a freshly booted machine with running clients connected to
> libvirt's default network (and successfully sending/receiving traffic,
> of course :-), get a dump of all active iptables rules with
>
>    iptables-save >iptables-working.txt
>
> 2) At whatever later time when you notice that the NAT is no longer
> working properly, get another dump of all the rules with
>
>    iptables-save >iptables-broken.txt
>
> and compare those two files to see what has changed.
>

Thank you very much Laine, good point !

I am waiting for it to fail again to compare both iptables.

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